/*
 * Copyright (c) 2012 Johan Fylling
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy 
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights 
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
 * copies of the Software, and to permit persons to whom the Software is 
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 
 * THE SOFTWARE.
 */

part of engine;


/**
 * Contact Feature.
 */
abstract class ContactFeature {
  
}

/**
 * Contact Edge.
 */
class ContactEdge extends Vector2
                  implements ContactFeature {
  final Vector2 vertex1;
  final Vector2 vertex2;
  final Vector2 max;
  
  ContactEdge (Vector2 v1, Vector2 v2, Vector2 max) : this.vertex1 = v1,
                                                      this.vertex2 = v2,
                                                      this.max = max,
                                                      super(v2.x - v1.x, v2.y - v1.y);
}

/**
 * Contact Vertex.
 */
class ContactVertex implements ContactFeature {
  final Vector2 vertex;
  
  ContactVertex (Vector2 this.vertex);
}
